Means and method for suppressing oscillations in electron guns

Details Means and method for suppressing oscillations in electron guns Means and method for suppressing oscillations in electron guns

1974-04-15

1976-06-15

Chatmon, Jr., Saxfield

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Combined cathode ray tube and circuit element structure

313441, 313446, 313452, 313456, 315 35, H01J 2308

Patent

active

039639550

ABSTRACT:
A method and apparatus for preventing oscillations in high-current electron guns. Spurious oscillations frequently occur as a result of interaction of the electron stream with the fields of resonant modes of the gun structure. The resonant impedances of the modes are lowered by damping with lossy dielectric or resistive materials which are suited to the high temperature and vacuum environment of electron guns. The lossy materials are located in places shielded from high electric fields applied to the gun. Lossy dielectric materials which are D.C. insulators may be used as insulating supports for gun electrodes.

REFERENCES:
patent: 2831141 (1958-04-01), Birdsall
patent: 2916659 (1959-12-01), Sege
patent: 3227913 (1966-01-01), Disman et al.
patent: 3374389 (1968-03-01), Cahour et al.
patent: 3500110 (1970-03-01), Winsor

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